Grain-separator.



0. A. BURGESON.

GRAIN SEPARATOR.

APPLICATION FILED JUNE I, 1915.

Patented Jan. 18, 1916.

2 SHEETS-SHEET l.

ooo @nini ..Illll O. A. BURGESON.

GRAIN SEPARATOR.

APPLICATION man JUNE 18. 1915.

1,168 282. Patented m1-8,1916.

, 2 SHEETS-SHEET 2.

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' f o'rro A. nunsnsomor Nansen, Noarn Barrera.

ZoaZZ whom it 'may concern: vBe lit known that I, OTTO A. BUnGnsoN',

citizen of the United States, residing at Nansoin-in the county of Rolette and State o`f- North Dakota, have invented certain'new and useful Improvements in Grain-S parators, of which the following is a speciti-Y cation.

-Myinventionrelates togravity grain sep-v arators; and is designed as an improvement over fia .similar` structure illustrated, vdescribed .and c-lairned in .a copending applica.-

tion filedlby meJ an. 16,1914, bearing Serial An object of the invention is to provide a knock-down or sectional separator in which the .several sections are held in vertical `alined relation and against displacement by meansof removable doors suitably and conveniently situated, intermediate alternating sections, lwhereby if necessary, access may be gained to any one of `the several sections utilized in .the-separating process.

Af'urther objectA of the invention is. to providea removable door, which, in reality, forms a part of the discharge chute for the grain-,1and'whichfin' practice, engages with tli-e-abutting.efsectionsin such a novel and eral movement. i n

furthercontemplate a means whereby the dust-and screenings may be confined in the-separator interior.` p

z HThe above and additional objects are ac# eomplishediby suchmeans as are illustrated in theirpreferred embodiment in the accompanying'drawings, Vdescribed in the `followng-lspecification and then more particularly proved grain-separator; Fig. v2 is an enlarged longitudinalsectional view illustrat-k ing-.the upper portion ofthe'separator; Fig.

3-isg fa,slmilar'view Yillustrating the lower pgrtiongofgthe separator;v Fig. 4 is asection eli-,the line; effi/.elf Fig. Figes lasec- "mantener-marca.

' speeiaceuoii of Leners einem.

Patented Jan. 18, 1916.

- Application led June 18, 1915. Serial No. 34,853.

tion on the line 5 5 of Fig. 3; and Fig. 6 is a detail perspective View of one of Vthe doors.

' Referring now to the drawings by numerals, l designates as an entirety the grain separator, 2 a suitable receptacle into which the grain is directed and 3 a suitable receptacle into which the dust, chaff or screening is directed, the latter, receptacle 3, being positioned in proximity to the receptacle 2,' preferably'at one side thereof.

Separator 1 is made up of a'pluralityfof duplicate sections designated, each as an en tirety by the numeral 4, the uppermost receptacle being equipped with a hopper 5 into which the grain is poured and the lowermost receptacle with a discharge chute 6 leading to the container or receptacle 3 and with a discharge chute 7 leading to the container or receptacle 2. Each section 4 of the separator is provided with a hook 8 whereby the several sections may be fastened or locked together, one upon the other, the hook of each section engaging a pin 9 fastened to the section next above. This type orfastening'is provided upon each lside o-the separator.

The process oi separation is carrie'dqinto 5 eect in much the same manneras outlined in myv former application in that the grain is'iirst directed onto a plurality of'inclined uniformly spaced parallel rods 10, the grain passing therebetween being directed by 'l gravity onto a plurality of screens each of a dierent mesh, the several screens being arranged 1n Zig-Zag relation and each designated 11. `Fach screen 11 is mounted onal movable frame 12 in turn supported atan inclination to the horizontal by meansvof cross beams 13 and a metallic plate 14 afiiXed thereto. The metallic plate 14 is made up of divided plate sections, one section forming a part of one of the separator sectionsand the other section forming a part of separator section adJacent thereto. Said plate 14 constitutes the ioor of a compartment 15 into which the chaff, dust and screening separated from the grain is directed. rlhe floor of the compartment isset at an inclination opposite to that of the screen 11, the dust, chaff and screeningvbeing thus Vdirected by` gravity through-an opening 16 andinto a chute v17 formed at vthroughout its entire length.

' upon the other` when the several separator sections are superposed. By this arrangement, a guard is formed whereby all of the sections are incased interiorly of the separator and dust and dirt held against escape; A. second chute 19 is formed in parallelism with the chute 17 and forwardly of the separator to extend, like said chute 17, The latter chute 17 is open to the several compartments at the forward side of the separator to catch and direct the chaff and screening to the container A3. Strips 20, like strips 18, may be arranged to extend across the top and bottom of alternate separator sections to serve in they same capacity as the strips 18 aforesaid.

rI'hat access may be gained to the screen 12 .y (in pairs) doors, designated each as an entirety by the numeral 2l are provided. These doors21 are of a novel construction ""in that they form a part of the forward dis- 'f supports, in actual practice, affording a rest for'theend wall 23 of the door. The end walls and the said supports are of an equal thickness that they may extend in vertically alined relation and flush. By a door construction as shown, the forward plate 22 would extend beyond the end wall 23 to terminate at a point flush with the inside walls of the separator and, by so extending, form with strips 26 a means whereby the l chaif, dust and dirt is' interiorly confined.

The strips 26 are located preferably both above and below each'door to engage respectively with the top and bottom edges of the forward plate 22.

Upon reference to Fig. 2 it will be noted that the inner wall 24 of the door, when the door is in place, closes communication be,- tween the chute 19 and the zig-zag chute provided for the uncleaned grain. The said inside wall is both interiorly and exteriorly lined and when properly placed, lies substantially flush with the inner wall of the chute that no obstruction or protuberances may exist.

A positive closure is in effect by the use of a door as shown, this for the reason that superimposed separator sections, and a rethe opening within which the door is fitted, extends both above andbelow the dividing line for the abutting separatorl sections thereby disposing all means of egress out of 'alineme'nt In practice, and assuggested, the uncleaned grain is fed to the hopper 5 and onto the screening rods 10. Straw and like mat# ter will be deflected by the mentioned,rodsA to the'chute 19. The grain and'fallingdirt passing between the rods will be directed alternately to the screens, one after the other, and as the screens are of varying ty'pes,the` grain, upon reaching. the lowermostscreen, will have been separated of all impurities such as cha, dust and dirtand will be conveyed to the container 2 in a sanitaryI cleaned state. All extraneous Vsubstances will be directed respectively by the chutes 17 and 19 to the container 8 in much'the same manner as setforth at length in my copending case.k 4 l i In reduction to practice,I have found that the form of my invention, illustrated inthe drawings and referred tovin the above description, as the preferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrent witlrthe adoption of my device will necessarily vary, I desire to emphasize thefact that various minor changes in details of construction, proportion and' arrangelnent of parts may be resorted to,when required, without sacrificing anyof the advantages of my inven-4 tion, as defined in the appended claims.

l-iaving thus fully described my invention, what I claim as new and desire to secure `by Letters lr'atent, is

v 1. In a grain separator, .aplurality' of movable door arranged to fit between -abu'tf ting sections to afford a means whereby said sections .are held against'relative lateral movement and for the purpose specified.

2. In a grain separator, a plurality of superimposed separatorsections, lock means to maintain the sections in vertical aline; ment, a plurality of screens arranged interiorly of the separator,.and a removable door arranged to lit vbetween the abutting sections and to afford a means whereby said sections are locked against relative lateral movementil portion of the door projecting exteriorly ofthe separator to provide thereon a means confining the material acted on against escape. f

3. In a grain separator, a plurality of superimposed separator sections, each sec` tion being cut away, the recess formed by that portion 'cut away providing a door 125'- opening, a .door fitting the opening, the Y mentioned door engaging the abutting sec- "5 tionsto preclude lateral displacement there? of, and means' aflixed to the outside'offthe separator and engaging the top and bottom 4edges of the ydoor to aord a. closure .means .at such points, substantiallyasdescribed.

4. In a grain separator, a .plurality .of

-superimposed separatorsections, one corner' of each sectlonvbemg cut away toaf'fordwlth the adjacent corner of the abutting sections a recess, 'a door ttng each recess, supports for the door disposed nterorlyof .the separator, anextenson formed at each end vof 10 the vdoor to overlap the side Walls 4of the separator and terminate Hush with the out= side thereof, and strips axed to therseparator to .engage with the door for the purpose speoied.

In testimony whereof I aIX my signature 15' Copies of this patent may be obtained .for ave cents each, by addressing the Commissioner of Patents. Washington, D. C. 

